Oana Balalau

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E-mail: firstname dot lastname at inria dot fr
Inria Saclay Île-de-France
Bâtiment Alan Turing
1 rue Honoré d’Estienne d’Orves
91120 Palaiseau

I am a researcher (ISFP) at Inria Saclay in the CEDAR team and part-time assistant professor at École polytechnique. I am also in involved in LabIA, a government initiative to bring the benefits of artificial intelligence to public administrations. Previously, I was a postdoctoral researcher at Max Planck Institute for Informatics in the team of Gerhard Weikum. I received my Ph.D. from Télécom Paris University and my advisor was Mauro Sozio.

My research interests are in natural language processing, graph mining, and computational social science.

Originally I am from Romania and more exactly Rucăr, a village in the Carpathian Mountains.


Breaking Down the Invisible Wall of Informal Fallacies in Online Discussions
ACL 2021, S. Sahai, O. Balalau and R. Horincar
[pdf] [code and data]

From the Stage to the Audience: Propaganda on Reddit
EACL 2021, O. Balalau and R. Horincar

Graph integration of structured, semistructured and unstructured data for data journalism
Information Systems, Elsevier, A. C. Anadiotis, O. Balalau, C. Conceicao, H. Galhardas, M. Y. Haddad, I. Manolescu, T. Merabti, and J. You

Empowering Investigative Journalism with Graph-based Heterogeneous Data Management
IEEE Data Engineering Bulletin, A. C. Anadiotis, O. Balalau, T. Bouganim, F. Chimienti, H. Galhardas, M. Y. Haddad, S. Horel, I. Manolescu, Y. Youssef

Discovering Conflicts of Interest across Heterogeneous Data Sources with ConnectionLens
CIKM 2021, A. C. Anadiotis, O. Balalau, T. Bouganim, F. Chimienti, H. Galhardas, M-Y. Haddad, S. Horel, I. Manolescu, Y. Youssef

SubRank: Subgraph Embeddings via a Subgraph Proximity Measure
PAKDD 2020, O. Balalau and S. Goyal
[pdf] [code]

PRINCE: Provider-side Interpretability with Counterfactual Explanations in Recommender Systems
WSDM 2020, A. Ghazimatin, O. Balalau, R. Saha Roy, and G. Weikum
[pdf] [code]

Discovering the Functions of Language in Online Forums
EMNLP W-NUT 2019, Y. Ismaeil, O. Balalau, and P. Mirza
[pdf] [dataset]

Analyzing the Traits and Anomalies of Political Discussions on Reddit
ICWSM 2019, A. Guimareas, O. Balalau, E. Terolli, and G. Weikum

EviDense: a Graph-based Method for Finding Unique High-impact Events with Succinct Keyword-based Descriptions
ICWSM 2018, O. Balalau, C. Castillo and M. Sozio
[short] [long] [code]

Listing k-cliques in Sparse Real-World Graphs
WWW 2018, M. Danisch, O. Balalau and M. Sozio.
[pdf] [code]

Finding Heaviest k-Subgraphs and Events in Social Media
ICDM DaMNet 2016, M. Letsios, O. Balalau, M. Danisch, E. Orsini and M. Sozio
[pdf] [code]

Finding Subgraphs with Maximum Total Density and Limited Overlap
WSDM 2015, O. Balalau, F. Bonchi, T-H. Hubert Chan, F. Gullo and M. Sozio
[pdf] [code]


I am currently a part time assistant professor at École polytechnique, teaching courses and/or lab session for INF473G and INF583.
In the past I supervised classes as a teaching assistant at Télécom Paris.


In my free time I enjoy reading and painting using watercolors.
My sister writes very nice stories and travel impressions (in Romanian).